一道空间立体几何题,求详解,如图所示,在四棱锥p-abcd中,PA⊥面ABCD,底面ABCD是等腰梯形,AD∥BC,AC⊥BD,1证明BD⊥PC2若AD=4,BC=2,直线PD与平面PAC所成的角为30°,求四棱锥p-abcd的体积
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 08:04:58
![一道空间立体几何题,求详解,如图所示,在四棱锥p-abcd中,PA⊥面ABCD,底面ABCD是等腰梯形,AD∥BC,AC⊥BD,1证明BD⊥PC2若AD=4,BC=2,直线PD与平面PAC所成的角为30°,求四棱锥p-abcd的体积](/uploads/image/z/5571948-12-8.jpg?t=%E4%B8%80%E9%81%93%E7%A9%BA%E9%97%B4%E7%AB%8B%E4%BD%93%E5%87%A0%E4%BD%95%E9%A2%98%2C%E6%B1%82%E8%AF%A6%E8%A7%A3%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E5%9B%9B%E6%A3%B1%E9%94%A5p-abcd%E4%B8%AD%2CPA%E2%8A%A5%E9%9D%A2ABCD%2C%E5%BA%95%E9%9D%A2ABCD%E6%98%AF%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2%2CAD%E2%88%A5BC%2CAC%E2%8A%A5BD%2C1%E8%AF%81%E6%98%8EBD%E2%8A%A5PC2%E8%8B%A5AD%3D4%2CBC%3D2%2C%E7%9B%B4%E7%BA%BFPD%E4%B8%8E%E5%B9%B3%E9%9D%A2PAC%E6%89%80%E6%88%90%E7%9A%84%E8%A7%92%E4%B8%BA30%C2%B0%2C%E6%B1%82%E5%9B%9B%E6%A3%B1%E9%94%A5p-abcd%E7%9A%84%E4%BD%93%E7%A7%AF)
xW[s+;#0A2w/NRjNgD+YDR,Y͉CI,L~@P#>5/$v;9;vylu?Ng}Z朣1`{1zL⨳3rX*WO]>oi֒,?Mz>49-s:'xٜM#/zS;\.z.nk0hhyX#o[ђ +`